In article , Stuart B
writes
I'm on the 2nd floor . There are cold tanks in the loft...one per side
..but they were only used for HW cylinders and I was the last on my
side to get a combi recently so i suggested to the Factor that they
cap the supply to the tank on my side and drain it down as it wouldn't
be getting used . The feed from it is/was in the kitchen anyway so
using it isn't an option even if I wanted to use it .
You are right in thinking that I posted a message about a drop in
pressure after SW did some work recently . The guy did come out but at
the time everything seemed fine .
After I posted this topic I bought a water pressure gauge ( it was
only £10) and I fitted it this afternoon and the pressure was 3 Bar .
It went down to just over 2 Barearly evening but now ( just before
midnight) it has gone to just over 3 Bar . Even when I turn on the
cold in the Basin it still stays above 2 Bar .... I'll se what it is
in the morning although it's usually later in the morning before I use
the shower .
2 bar with the basin open does sounds healthy, is that fully open? How
about the bath? I think you'd only get a bar or so from the loft tank to the
2nd floor.
Just looked at the specs for a (random) triton electric shower and it was
1bar min for 9.5kw and 1.5bar for 10.5kw. It looked quite an expensive
model (T100xr) and it mentioned flow stabilisation:
"The stabiliser valve minimises variations in shower temperature during
mains water pressure changes. If changes in shower temperature are
experienced during normal use, it will most likely be caused by the water
pressure falling near to or below the minimum level. The drop in pressure
may be due to water being drawn off at other points in the house whilst the
shower is in use. If pressure drops appreciably below the minimum, the
heating elements will automatically cut out. "
Don't know if yours might have that, expensive one more likely I imagine,
cheapie less likely.
If it doesn't have one then I can see variations between 3&2bar upsetting
the flow & therefore temp quite a bit.
As a workaround I found some stand alone pressure reducers at BES:
http://www.bes.ltd.uk/products/109.asp , if your shower doesn't have a
stabiliser then this might help but I don't know what their minimum drop is,
which would be critical. Note I haven't used these, 20quid to try.
What I want is to see what it is at the w/end . I don't know how far
the effect on me of others using the cold water spreads . Will it just
be this close or also the next one or the one after that as well. ????
Think the gauge is a good idea.
--
fred
Plusnet - I hope you like vanilla